DEMONSTRATIONS
Noun
demonstrations
plural of demonstration
Source: Wiktionary
DEMONSTRATION
Dem`on*stra"tion, n. Etym: [L. demonstratio: cf. F. démonstration.]
1. The act of demonstrating; an exhibition; proof; especially, proof
beyond the possibility of doubt; indubitable evidence, to the senses
or reason.
Those intervening ideas which serve to show the agreement of any two
others are called "proofs;" and where agreement or disagreement is by
this means plainly and clearly perceived, it is called demonstration.
Locke.
2. An expression, as of the feelings, by outward signs; a
manifestation; a show.
Did your letters pierce the queen to any demonstration of grief Shak.
Loyal demonstrations toward the prince. Prescott.
3. (Anat.)
Definition: The exhibition and explanation of a dissection or other
anatomical preparation.
4. (Mil.) a decisive exhibition of force, or a movement indicating an
attack.
5. (Logic)
Definition: The act of proving by the syllogistic process, or the proof
itself.
6. (Math.)
Definition: A course of reasoning showing that a certain result is a
necessary consequence of assumed premises; -- these premises being
definitions, axioms, and previously established propositions. Direct,
or Positive, demonstration (Logic & Math.), one in which the correct
conclusion is the immediate sequence of reasoning from axiomatic or
established premises; -- opposed to Indirect, or Negative,
demonstration (called also reductio ad absurdum), in which the
correct conclusion is an inference from the demonstration that any
other hypothesis must be incorrect.
Source: Webster’s Unabridged Dictionary 1913 Edition